<status value="active"/> <experimental value="false"/> <date value="2014-03-26"/> <description value="A code specifying whether and how the participant has attested his participation through a signature and or whether such a signature is needed. *Examples:* A surgical Procedure act object (representing a procedure report) requires a signature of the performing and responsible surgeon, and possibly other participants. (See also: Participation.signatureText.)"/> <compose> <include> <system value="http://terminology.hl7.org/CodeSystem/v3-ParticipationSignature"/> </include> </compose> </ValueSet>